DeVille V8-4.6L VIN Y (1998)
Driver/Vehicle Information Display: Description and Operation
MPH (Analog)
The MPH message is the current vehicle speed. This display is not active on vehicles unless enabled by using the override option E. The speed displayed
in this message may not always match the speed displayed by the analog (needle) speedometer. The analog gauge still meets all of the government
requirements even though the displays are different.